Revision: 5865
http://jnode.svn.sourceforge.net/jnode/?rev=5865&view=rev
Author: galatnm
Date: 2011-10-20 06:47:47 +0000 (Thu, 20 Oct 2011)
Log Message:
-----------
Modified Paths:
--------------
trunk/core/src/driver/org/jnode/driver/DeviceUtils.java
Modified: trunk/core/src/driver/org/jnode/driver/DeviceUtils.java
===================================================================
--- trunk/core/src/driver/org/jnode/driver/DeviceUtils.java 2011-10-19
12:28:40 UTC (rev 5864)
+++ trunk/core/src/driver/org/jnode/driver/DeviceUtils.java 2011-10-20
06:47:47 UTC (rev 5865)
@@ -17,7 +17,7 @@
* along with this library; If not, write to the Free Software Foundation,
Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-
+
package org.jnode.driver;
import java.util.Collection;
@@ -27,39 +27,37 @@
/**
* Class with utility methods for the device framework.
- *
+ *
* @author Ewout Prangsma (e...@users.sourceforge.net)
*/
public class DeviceUtils {
/**
- * Cached devicemanager reference
+ * Cached device manager reference
*/
- private static DeviceManager dm;
+ private static DeviceManager deviceManager;
/**
* Gets the device manager
- *
+ *
* @return The device manager
* @throws NameNotFoundException
*/
- public static DeviceManager getDeviceManager()
- throws NameNotFoundException {
- if (dm == null) {
- dm = InitialNaming.lookup(DeviceManager.NAME);
+ public static DeviceManager getDeviceManager() throws
NameNotFoundException {
+ if (deviceManager == null) {
+ deviceManager = InitialNaming.lookup(DeviceManager.NAME);
}
- return dm;
+ return deviceManager;
}
/**
* Gets a device by name
- *
+ *
* @param deviceID
* @return The device
* @throws DeviceNotFoundException
*/
- public static Device getDevice(String deviceID)
- throws DeviceNotFoundException {
+ public static Device getDevice(final String deviceID) throws
DeviceNotFoundException {
try {
return getDeviceManager().getDevice(deviceID);
} catch (NameNotFoundException ex) {
@@ -69,14 +67,14 @@
/**
* Gets a specific API from a device.
- *
+ *
* @param deviceID the ame of the requested device
- * @param api the API class to use
+ * @param api the API class to use
* @return The api implementation
* @throws DeviceNotFoundException
* @throws ApiNotFoundException
*/
- public static <T extends DeviceAPI> T getAPI(String deviceID, Class<T> api)
+ public static <T extends DeviceAPI> T getAPI(final String deviceID, final
Class<T> api)
throws DeviceNotFoundException, ApiNotFoundException {
try {
return getDeviceManager().getDevice(deviceID).getAPI(api);
@@ -85,20 +83,21 @@
}
}
-
/**
* Returns a collection of all known devices that implement the given api..
- * The collection is not modifiable, but the underlying collection
- * can change, so be aware of exceptions in iterators.
- *
+ * The collection is not modifiable, but the underlying collection can
+ * change, so be aware of exceptions in iterators.
+ *
* @param apiClass
* @return All known devices the implement the given api.
*/
- public static Collection<Device> getDevicesByAPI(Class<? extends
DeviceAPI> apiClass) {
+ public static Collection<Device> getDevicesByAPI(final Class<? extends
DeviceAPI> apiClass) {
+ Collection<Device> deviceList;
try {
- return getDeviceManager().getDevicesByAPI(apiClass);
+ deviceList = getDeviceManager().getDevicesByAPI(apiClass);
} catch (NameNotFoundException ex) {
- return Collections.emptyList();
+ deviceList = Collections.emptyList();
}
+ return deviceList;
}
}
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